| 摘要 |
A process for inhibiting the formation and deposition of scale and iron oxide in aqueous systems, comprising adding to the system at least 0.l ppm of an admixture of: (A) a water soluble polymer, having an intrinsic viscosity of 0.05 to 2.5 dl/g, prepared from: (i) 35 to 90%, by weight, of an unsaturated carboxylic compound, e.g. selected from the group consisting of acrylic acid, methacrylic acid, their salts and mixtures thereof; and (ii) l0 to 65%, by weight, of an unsaturated sulfonic compound, e.g. selected from the group consisting of 2-acrylamido-2-methylpropylsulfonic acid, 2-methacrylamido-2-methylpropyl sulfonic acid, their salts and mixtures thereof; and (B) a water-soluble poymer having an intrinsic viscosity of 0.05 to 2.5 dl/g, prepared from: (i) 35 to 90%, by weight, of an unsaturated carboxylic acid, or its salt; and (ii) l0 to 65%, by weight, of an unsaturated pendant polyalkylene oxide compound. |
